Hamster Run-O-Meter
Measure its speed and distance covered
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Component list
Component List
Resistors
R1 = 1.8kΩ
R2 = 3.3kΩ
R3,R4,R5,R6,R7,R10 = 4.7kΩ
R8,R9,R11 = 1kΩ
R12,R14 = 470Ω
R13 = 100Ω
P1 = 4.7kΩ preset, horizontal
P2 = 10kΩ preset, horizontal
Capacitors
C1 = 100µF 50V, 3.5mm pitch
C2,C3,C4,C5,C8,C9 = 100nF/50V, X7R, 0.2'' pitch
C6,C7 = 22pF 50V, C0G/NP0, 2.5mm pitch
Semiconductors
IC1 = MC7805
IC2 = PIC18F26K22, programmed, Elektor Store # 180341-41
IC3 = 74HCT14 Schmitt-trigger inverter
IC4 = TLC272CP, double JFET opamp
IC5,IC6* = TCRT5000, IR reflective sensor (not PCB-mounted)
IC5,IC6* = TSOP4838, remote control receiver, 38kHz (not PCB-mounted)
LED1,LED2 = LED, yellow, 3mm
LED3 = LED, red, 3mm
LED4,LED5* = TSUS5400 IR LED (not PCB-mounted)
T1,T2 = BC547C
Miscellaneous
LCD1 = 2x16 character LCD with backlight, Elektor Store # 120061-74
LCD1' = 1x16 way socket, vertical
LCD'' = 1x16 pin header, vertical.
S1 = pushbutton, 24V, 50mA, 6x6 mm
ENC1 = EC12E2424407, incremental rotary encoder with push-switch, 12mm, vertical
X1 = 16MHz quartz crystal
K1 = power supply connector, 1.95mm pin
K2 = 9-pin D-sub PCB-mounting connector, female
K3 * = 6-pin pinheader, 0.1'' pitch
IC socket, DIP-28, small (IC2)
IC socket, DIP-14 (IC3)
IC socket, DIP-8 (IC4)
9-pin D-sub connector, male, cable mounting
Standoff with bolt M3 x 10 mm
Bolt, M3 x 5 mm
Spring washer, M3
Nut, M3
PCB, Elektor Store # 180431-1 V1.1
* = see text
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